Brain & Nervous System

Study of Clinical Aspects of Microwave Exposure - First Quarterly Report

Michaelson · 1973

Physiological Effects of Electromagnetic Fields in the ELF Region II. A Review

W. Ludwig, M. A. Persinger, K.-P. Ossenkopp · 1973

Researchers exposed rats prenatally to a 0.5 Hz, 0.5—30 gauss rotating magnetic field and observed behavioral and physiological changes. Prenatally exposed rats showed less ambulatory behavior and greater defecation in an open field test. In a free-operant avoidance task, exposed rats pressed the lever significantly less but received similar numbers of shocks as controls. Exposed rats also had significantly increased relative thyroid and testicle weights, with no changes in blood sugar or eosinophil counts.

SOME BIOLOGICAL EFFECTS OF MICROWAVE IRRADIATION IN THE RAT

T. Daryl Hawkins et al. · 1973

In the lethality study, one hundred and seventy-four male Wistar rats were exposed to 3000 MHz microwave radiation, and the lethal energy density (LD50) increased with longer exposure durations. The lethal power density required for a lethal effect decreased as exposure duration increased. At each frequency, higher power levels resulted in shorter times to work stoppage. At all power levels which resulted in a complete cessation of performance, 1700 MHz produced the shortest stoppage times, while both higher and lower frequencies had progressively less influence.

Results of Clinical Surveys for Microwave Ocular Effects

Colonel Budd Appleton · 1973

Human Perception of Illumination with Pulsed Ultrahigh-Frequency Electromagnetic Energy

Richard Felger, Mary Beck Moser · 1973

Microwave interaction with the auditory systems of humans and cats

Guy AW, Taylor EM, Ashleman B, Lin JC · 1973

EFFECTS OF MODULATED VERY HIGH FREQUENCY FIELDS ON SPECIFIC BRAIN RHYTHMS IN CATS

S. M. BAWIN, R. J. GAVALAS-MEDICI, W. R. ADEY · 1973

Gamma globulin, acetylcholinesterase, and chymotrypsin following radiofrequency irradiation

FINCH, E.D., McLEES, B.D. · 1973

A STUDY OF THE ACTION OF ELECTROMAGNETIC WAVES AT VARIOUS REGIONS OF THE RADIO BAND ON SOME FUNCTIONAL INDICES IN WORKERS

B. Stefanov, I. Zlatarov, A. Solakov · 1973

OPERANT BEHAVIOR OF RHESUS MONKEYS IN THE PRESENCE OF EXTREMELY LOW FREQUENCY-LOW INTENSITY MAGNETIC AND ELECTRIC FIELDS: EXPERIMENT 2

John de Lorge · 1973

Two male rhesus monkeys were trained to perform fixed-interval, reaction-time, and match-to-sample tasks for food and water reinforcement. In the first phase they were exposed to a 45-Hz, 10-gauss magnetic field with an accompanying electric field for 13 sessions. In the second phase they were exposed to a 10-Hz, 10-gauss magnetic field with a 10-Hz electric field for 12 sessions. No significant behavioral changes were found during 45-Hz exposure, while 10-Hz exposure produced statistically significant but not clinically significant or reproducible effects, and the study concluded that low-intensity ELF fields did not unequivocally cause behavioral changes in nonhuman primates.

GAMMA-AMINOBUTYRIC ACID METABOLISM IN RATS FOLLOWING MICROWAVE EXPOSURE

G. H. Zeman, R. L. Chaput, Z. R. Glaser, L. C. Gershman · 1973

No significant differences in whole brain GABA levels or GAD activity were found between exposed and control rats after any exposure regimen. The authors concluded that altered GABA metabolism is unlikely to be involved in nervous system responses to microwave exposure.

STRONG AND PERMANENT INTERACTION BETWEEN PERIPHERAL NERVE AND A CONSTANT INHOMOGENEOUS MAGNETIC FIELD

P. Kolta · 1973

EFFECT OF 2450 MHz MICROWAVE FIELDS ON PERIPHERAL NERVES

C.K. CHOU, ARTHUR W. GUY · 1973

The study used a waveguide filled with temperature-controlled Ringer's solution to expose nerves to CW and pulsed 2450 MHz fields. Frog and cat nerves were tested. Each exposure run lasted 20 minutes with the circulator on for the first 10 minutes and off for the final 10 minutes. Absorbed power densities ranged from 0.003 to 1.7 W/cc for CW and 0.3 to 30 W/cc peak for pulsed fields. No changes in compound action potential amplitude, conduction velocity, or excitability were observed while the circulator was on at any power level.

Bipolar coagulation with modified conventional electrocoagulators

Gidon F. Gestring, Wolfgang T. Koos, Fritz W. Boeck · 1972

AM radio waves boost AF perception in deaf

Unknown authors · 1972

Fischer-Spassky Charges: What Did the Russians Have in Mind?

Nicholas Wade · 1972

INFLUENCE OF LOW-LEVEL ELECTRIC AND MAGNETIC FIELDS ON THE GROWTH OF YOUNG CHICKENS

W. F. Krueger, A. J. Giarola, J. W. Bradley, S. R. Darvall · 1972

MORPHOLOGICAL CHANGES IN THE CELLS OF CORTIS ORGAN FOLLOWING EXPOSURE TO MICROWAVES

R. Zyss, E. Boczynski · 1972

Researchers exposed guinea pigs to microwaves of 2 mW/cm² intensity and 10 cm wavelength and examined morphological state, glycogen, and nucleic acids in Corti's organ. They observed degeneration of cytoplasm, pyknosis or swelling of nuclei, and swelling or vacuolar changes in the cytoplasm. The organ of Corti contained abundant glycogen only in outer hair cells. Microwave irradiation caused a marked decrease in that glycogen content.

Dynamic Characteristics of Crayfish Stretch Receptor for Microwave Radiation

Itsuo Yamaura, Goro Matsumoto · 1972

HEALTH SURVEILLANCE OF PERSONNEL PROFESSIONALLY EXPOSED TO MICROWAVES

S.Baranski, P.Czerski · 1972

Stimulation of Partial Limb Regeneration in Rats

R. O. Becker · 1972

Control animals with no device or very low current showed minimal growth, while high current caused bone destruction. The experimental device produced a current of 3-6 nA. Rats receiving this current frequently developed organized regrowth of the distal humerus with epiphyseal centers. In animals with higher growth scores, new organized skeletal muscle formed distal to the amputation line along with ingrowth of nerves and blood vessels, and the authors concluded that appropriate electrical stimulation can restore regenerative growth in mammals.

Electromagnetic forces and life processes

Becker RO · 1972

MICROWAVES—A PUBLIC MENACE?

Unknown authors · 1972

Dr. Zaret examined over 400 individuals referred for microwave exposure during military studies between 1960 and 1971. One out of ten of those individuals had capsular opacity that would later develop into full-fledged cataracts. Microwave cataracts differ from normal ones by developing in the capsule and spreading gradually to the lens. These cataracts do not appear until at least five years after exposure, a delay Dr. Zaret calls a "time-bomb" quality.

Observations on Microwave Hazards to USAF Personnel

Lawrence T. Odland · 1972

CHANGES IN ACTIVITY OF CERTAIN ENZYMES IN THE CELLS OF CORTI'S ORGAN IN GUINEA PIGS FOLLOWING LONG-TERM EXPOSURE TO MICROWAVES

E. Boczynski, R. Zyss · 1972

Researchers exposed guinea pigs to microwave radiation of 10 em wavelength and 2 mW/cm! intensity for 4 hours daily over 25 or 50 days. They measured succinyl dehydrogenase, lactic dehydrogenase, and acetylcholinesterase activity in Corti's organ cells using histochemical methods. Exposure decreased succinyl dehydrogenase and acetylcholinesterase activity while increasing lactic dehydrogenase activity, and these changes disappeared 30 days after exposure stopped.